Electrical connection



mg, 1, 193$ s. DEL cAMP l ELECTRICAL CONNECTION Filed Nov. 30, 193"! Patented Aug. l5,- 1939 UNITED STATESF'PATBNT OFFICE ".w.....i;...;i;........ I i

. SQipionc M. be: Camp, Haywood, 111., asaignor to- Cinch Manulacturlng Corporation, Chicago,

' 111., a corporation of Illinois Application November at, 1931, Serial No. 177,246

3 Claims.

My invention relates to improved plug and socket members wherein one bi the members is secured to a metal supporting panel and the other member is provided with a shield in electrical connection with the panel whereby the last-mentioned member is shielded against external ele'ctricaldisturbances. g

In the drawing, which represents a preferred embodiment of my invention:-

Figure l is a top plan view showing my plug and socket member electrically connected and disposed on opposite sides of a metal supporting panel; a

Fig. 2 is a bottom view of the installation shown Fig. 3 is a fragmentary section taken along the line 33 of Fig. 2; Y Fig. 4 is a fragmentary section taken along the line 4-4 of Fig. 2"; no Fig. 5 is a front elevation showing a supporting panel with the socket member of my device secured thereto; and Y Fig. 6 a bottom view of the plug member of my device.

I 25 Referring to the drawing, I have shown a sockadapted to engage the metal supporting panel 2:

through apertures 9, which, in my preferred form,

are disposed adjacent the aperture 6 whereby electrical contact is established between the shield 40v 1 and the supporting panel.

The socket member of my device, as most clearly illustrated in Figs. 2, 3, 4 and 5, comprises a plurality of insulating plates secured together and contact terminals carried by one or more of 45 the' insulating plates of the assembly. Myipreferred form 01' socket member includes an upper insulating plate' It and a lower insulating. plate ll secured together through'any suitable means.

such as the rivets i2 (Figs.'2 and 5). The upper- 50 plate I0 has a notch it in each of the opposed sides thereof and the plate II has a notch Mpn each of its sides corresponding to the notched sides of the plate It (Figs. 2 and 4). The socket contact terminals 5 are carried by the insulat- 65 ing plates and each terminal extends through an aperture 1.6 (Fig. 2) of the insulating plate ii and is firmly secured to the plates, in my preferred device, by means of a flange portion I'I (Fig. 4) disposed between the plates ill and Ii when the plates. are inassembled relation. The .1; plate ID has apertures l8 in alignment with the prong-receiving portions of the contact terminals v 5 to allow entrance of the prongs of the cooperating plug member into the contact terminals. The socket memberi of my device is secured'to the 10 metal supporting panel 2 through any suitable means, such as the rivets IS, with the prong-receiving openings l8 of the insulating plate l0 taching meansB-O of the plug member to pass entirely through the panel to a position, if it is go so desired, beyond the insulating plates of the socket member, as most clearly shown in Fig. 4. Referring tothe plug member 3 of my device,

' the metal shield I is cup-shaped in form and provided with a cylindrical neck portion at one end having an opening 2i which is wide enough to allow a wire or group of wires to pass into the shield for attachment to the contact prongs 4.

A metallic shield 22 (Figs. 3 and 4') or other form that covers insulated wire, may be drawn over or go into the neck .20 and soldered or otherwise permanently secured to the shield. An insulating plate 23 isafllxed to the bottom of the cup-shaped shield I through means of lugs 24 (Fig. 6) integral with the open end of the shield and bent over to clamp the plate 23 within'a narrowperipheral ridge 2! formed adjacent the open end of the shield (Figs. 2. and 4). The contact prongs 4, adapted for contact with the cooperating contact terminals it or the socket member, are anchored 40 to the plate 23. In order that electrical contact may be established between thecup-shaped shield I. and the supporting panel 2 when the plug and socket members are in connected relation, I have provided attaching members 8,.which' are preferably two in number, as shown in Figs. 4 and 6. Theattaching members 8, in my preferred form,

- have an end portion secured to sides of the shield l in any suitable manner, as'by rivets 25 (Fig. 4) and a free end portion extending through apertures 28 (Figs. 4 and 6) in the insulating plate 23 and beyond the plate 23 a sufiicient distance for complete engagement with-the supporting panel 2 through the apertures 6-9. The free end of each oi the attaching members 8 is bifurcated so as to form a pair of yieldable arms 21. The pairs of yieldable arms 21 are normally wider than the widest dimension of the respective openings 9 with the result that the arms 21' of each pair are compressed to pass through the openings 9, after which action they expand to engage firmly the material surrounding the aperture, as most-clearly shown in Fig. 2. The arms 21 of each pair are preferably inclined at their outer edges whereby they may be cammed toward each other to permit easy insertion of the pairs into their respective apertures.

In connecting the plug and socket members, prongs 4 of the plug member are aligned with the prong-receiving apertures l I of the plate ll) of the socket member, and, at the same time, pairs of yieldable arms 21 of the attaching members of ,the plug member take a position inalignment with the respective openings 9 in the supporting panel 2'. During movement of the prongs 4 into engagement with the socket contact terminals I5, the pairs of yieldable arms 21 pass through the openings 9 so as to engage the material of the panel 2 surrounding the apertures in the 1. An electrical device comprising, in combination, plug and socket members and a metal supporting panel having a large opening and a smaller opening on one side thereof, said socket member being secured to said panel and having insulating plates carry g socket contact terminals intersecting said large opening, said plug member being disposed on the other side of said supporting panel from said socket member, said plug member having a hollow metal shield, a plurality of stud contact terminals extending beyond said shield into cooperative fastening engagement with said socket terminals and a yieldable conducting member secured to said shield, said conducting member being engaged and disengaged with said panel by direct axial movement thereof through said small opening whereby said shield and said panel are electrically connected and disconnected.

2. An electrical device comprising, in combination, plug and socket members and a metal panel having a. large opening and a smaller opening on one side thereof, said socket member being secured to said panel and having insulating plates carrying socket contact terminals intersecting said large opening, said plug member being disposed on the other side of said supporting panel from said socket member, said plug member hav-.

ing a hollow metal shield, a plurality of stud contact terminals extending beyond said shield into cooperative fastening engagement with said socket terminals and a conducting member electrically connected to said shield, said conducting member having a pair of yieldable arms engaged and disengaged with said panel through direct axial movement thereof through said smaller opening whereby said shield and said panel are electrically connected and disconnected.

3. An electrical device comprising, in combination, plug and socket members secured to opposite sides of an apertured metal panel, said members having contact terminals for electrical engagement through the aperture of said panel, one of said members having assembled insulating plates carrying the respective contact terminals of said member, attaching means extending through one of said insulating 'plates and said panel for securing said last-mentioned member to said panel, the other of said members having a metal shield and a yieldable conducting member electrically connected with said shield, said conducting member extending beyond an end of said shield and engaging said metal panel whereby said shield and said panel are electrically connected together.

SCIPIONE M. DEL CAMP. 

